11221111012209 has 8 divisors (see below), whose sum is σ = 17098835828160. Its totient is φ = 6412063435536.

The previous prime is 11221111012207. The next prime is 11221111012291. The reversal of 11221111012209 is 90221011112211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11221111012209 - 2¹ = 11221111012207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221111012207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267169309794 + ... + 267169309835.

It is an arithmetic number, because the mean of its divisors is an integer number (2137354478520).

Almost surely, 2^{11221111012209} is an apocalyptic number.

It is an amenable number.

11221111012209 is a deficient number, since it is larger than the sum of its proper divisors (5877724815951).

11221111012209 is an equidigital number, since it uses as much as digits as its factorization.

11221111012209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534338619639.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 11221111012209 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred nine".